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Official data from INPI

APERFEIÇOAMENTO EM TROCADORES DE CALOR

ConcedidaInvention Patent

Application data

Number

PI8404877

Type

Invention Patent

Filing

09/25/1984

Publication

09/10/1985

Progress at the INPI

  1. Filing09/25/84
  2. Publication09/10/85
  3. Examination01/21/86
  4. Allowance08/02/88
  5. Grant09/26/89
  6. Terminated06/27/95

The patent was granted on 09/26/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Colméia S/A Indústria Paulista de Radiadores

SP, BR

See this company's full portfolio

Inventors

V. T. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

11/29/1988

RPI 945

Deferimento

#9.1

08/02/1988

RPI 928

Republicação - classificação IPC

#15.11

02/09/1988

RPI 903

Exigência - art. 36 da LPI

#6.1

01/12/1988

RPI 899

Solicitação de exame técnico

#4.1

01/21/1986

RPI 796

Publicação antecipada

#3.2

09/10/1985

RPI 777

Pedido de patente depositado

#2.1

12/11/1984

RPI 738

Anuidade - prazo legal encerrado

#18.2

06/27/1995

RPI 1282

200

03/05/1991

RPI 1057

Pedido de licença voluntária

#17.1

08/14/1990

RPI 1028

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